W51Header code — not billable
Accidental striking against or bumped into by another person
- Chapter
- 20. External causes of morbidity
- Category
- W51
- Effective date
- October 1, 2026
Related codes in category W51
Frequently asked questions
What is ICD-10 code W51?
W51 is an ICD-10-CM diagnosis code for Accidental striking against or bumped into by another person.
Is W51 a billable code?
No. W51 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is W51 in?
W51 falls under Chapter 20: External causes of morbidity.
When did W51 become effective?
W51 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to W51?
W51 belongs to category W51, which includes 3 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.